The pattern of transforming many position vectors at once is quite
common, both with separate source and result arrays, and when modifying
an array in place. In some cases at least we used a separate function
with a consistent name across files, but there were also many duplicate
parallel transform implementations.
This commit adds these utilities to the BLI_math_matrix.hh API and uses
them where many positions from contiguous arrays are transformed at
once. While there might be a more ideal location for these utilities,
it's consistent with 3936d7a93e, and certainly better
than duplicating them.
This also reduces binary size of my build by 15 KB.
Pull Request: https://projects.blender.org/blender/blender/pulls/145352
c01d4a4ee6